template <class T> static void
transfer(const T &key, const QContactDetail &source, QContactDetail &target)
{
    QVariant value(source.variantValue(key));

    if (not value.isNull()) {
        target.setValue(key, value);
    }
}
void tst_QContactDetail::values()
{
    QContactDetail p;

    QCOMPARE(p.variantValues(), QVariantMap());

    QDateTime dt = QDateTime::currentDateTime();
    QTime t = dt.time();
    t.setHMS(t.hour(), t.minute(), t.second(), 0); // milliseconds don't round trip through ISODate
    dt.setTime(t);
    QDate d = dt.date();

    QDateTime ddt(d); // DateTime version of a Date (QTime())

    p.setValue("string", "This is a string");
    p.setValue("date", d);
    p.setValue("datetime", dt);
    p.setValue("int", (int)6);

    p.setValue("stringdate", d.toString(Qt::ISODate));
    p.setValue("stringdatetime", dt.toString(Qt::ISODate));

    // Test the setter that takes a QString
    p.setValue(QLatin1String("stringint"), "123");

    // and the setter that takes a QL1C
    p.setValue(QContactPhoneNumber::FieldNumber, "1234");

    /* Presence test (const char * version) */
    QVERIFY(p.hasValue("string"));
    QVERIFY(p.hasValue("date"));
    QVERIFY(p.hasValue("datetime"));
    QVERIFY(p.hasValue("int"));
    QVERIFY(p.hasValue("stringdate"));
    QVERIFY(p.hasValue("stringdatetime"));
    QVERIFY(p.hasValue("stringint"));
    QVERIFY(p.hasValue(QContactPhoneNumber::FieldNumber.latin1()));
    QVERIFY(!p.hasValue("non existent field"));

    /* QLatin1Constant version */
    QVERIFY(p.hasValue(QContactPhoneNumber::FieldNumber));
    QVERIFY(!p.hasValue(QContactAddress::FieldCountry));

    /* Again with QString version */
    QVERIFY(p.hasValue(QLatin1String("string")));
    QVERIFY(p.hasValue(QLatin1String("date")));
    QVERIFY(p.hasValue(QLatin1String("datetime")));
    QVERIFY(p.hasValue(QLatin1String("int")));
    QVERIFY(p.hasValue(QLatin1String("stringdate")));
    QVERIFY(p.hasValue(QLatin1String("stringdatetime")));
    QVERIFY(p.hasValue(QLatin1String("stringint")));
    QVERIFY(p.hasValue(QString(QLatin1String(QContactPhoneNumber::FieldNumber))));
    QVERIFY(!p.hasValue(QLatin1String("non existent field")));

    /* string accessors with const char* key */
    QCOMPARE(p.value("string"), QString("This is a string"));
    QCOMPARE(p.value("date"), d.toString(Qt::ISODate));
    QCOMPARE(p.value("datetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value("int"), QString("6"));
    QCOMPARE(p.value("stringdate"), d.toString(Qt::ISODate));
    QCOMPARE(p.value("stringdatetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value("stringint"), QString("123"));
    QCOMPARE(p.value(QContactPhoneNumber::FieldNumber.latin1()), QString("1234"));

    /* string accessor with QL1C key */
    QCOMPARE(p.value(QContactPhoneNumber::FieldNumber), QString("1234"));

    /* string accessors with QString key */
    QCOMPARE(p.value(QLatin1String("string")), QString("This is a string"));
    QCOMPARE(p.value(QLatin1String("date")), d.toString(Qt::ISODate));
    QCOMPARE(p.value(QLatin1String("datetime")), dt.toString(Qt::ISODate));
    QCOMPARE(p.value(QLatin1String("int")), QString("6"));
    QCOMPARE(p.value(QLatin1String("stringdate")), d.toString(Qt::ISODate));
    QCOMPARE(p.value(QLatin1String("stringdatetime")), dt.toString(Qt::ISODate));
    QCOMPARE(p.value(QLatin1String("stringint")), QString("123"));
    QCOMPARE(p.value(QString(QLatin1String(QContactPhoneNumber::FieldNumber))), QString("1234"));

    /* Variant accessor with const char * key */
    QCOMPARE(p.variantValue("string"), QVariant(QString("This is a string")));
    QCOMPARE(p.variantValue("date"), QVariant(d));
    QCOMPARE(p.variantValue("datetime"), QVariant(dt));
    QCOMPARE(p.variantValue("int"), QVariant((int)6));
    QCOMPARE(p.variantValue("stringdate"), QVariant(d.toString(Qt::ISODate)));
    QCOMPARE(p.variantValue("stringdatetime"), QVariant(dt.toString(Qt::ISODate)));
    QCOMPARE(p.variantValue("stringint"), QVariant(QString("123")));
    QCOMPARE(p.variantValue(QContactPhoneNumber::FieldNumber.latin1()), QVariant(QString("1234")));

    /* Variant accessor with QL1C key */
    QCOMPARE(p.variantValue(QContactPhoneNumber::FieldNumber), QVariant(QString("1234")));

    /* Variant accessor with QString key */
    QCOMPARE(p.variantValue(QLatin1String("string")), QVariant(QString("This is a string")));
    QCOMPARE(p.variantValue(QLatin1String("date")), QVariant(d));
    QCOMPARE(p.variantValue(QLatin1String("datetime")), QVariant(dt));
    QCOMPARE(p.variantValue(QLatin1String("int")), QVariant((int)6));
    QCOMPARE(p.variantValue(QLatin1String("stringdate")), QVariant(d.toString(Qt::ISODate)));
    QCOMPARE(p.variantValue(QLatin1String("stringdatetime")), QVariant(dt.toString(Qt::ISODate)));
    QCOMPARE(p.variantValue(QLatin1String("stringint")), QVariant(QString("123")));
    QCOMPARE(p.variantValue(QLatin1String(QContactPhoneNumber::FieldNumber)), QVariant(QString("1234")));

    /* Typed accessors, string first, const char* key */
    QCOMPARE(p.value<QString>("string"), QString("This is a string"));
    QCOMPARE(p.value<QString>("date"), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("datetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("int"), QString("6"));
    QCOMPARE(p.value<QString>("stringdate"), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("stringdatetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("stringint"), QString("123"));
    QCOMPARE(p.value<QString>(QContactPhoneNumber::FieldNumber.latin1()), QString("1234"));

    /* Now individual original types */
    QCOMPARE(p.value<QDate>("date"), d);
    QCOMPARE(p.value<QDateTime>("datetime"), dt);
    QCOMPARE(p.value<int>("int"), 6);

    /* now latin constant keys */
    QCOMPARE(p.value<QString>(QContactPhoneNumber::FieldNumber), QString("1234"));

    /* Typed accessors, string first, QString key */
    QCOMPARE(p.value<QString>(QLatin1String("string")), QString("This is a string"));
    QCOMPARE(p.value<QString>(QLatin1String("date")), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>(QLatin1String("datetime")), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>(QLatin1String("int")), QString("6"));
    QCOMPARE(p.value<QString>(QLatin1String("stringdate")), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>(QLatin1String("stringdatetime")), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>(QLatin1String("stringint")), QString("123"));
    QCOMPARE(p.value<QString>(QLatin1String(QContactPhoneNumber::FieldNumber)), QString("1234"));
    QCOMPARE(p.value<QDate>(QLatin1String("date")), d);
    QCOMPARE(p.value<QDateTime>(QLatin1String("datetime")), dt);
    QCOMPARE(p.value<int>(QLatin1String("int")), 6);

    /* Now cross types that should fail */
    QDate id;
    QDateTime idt;
    QCOMPARE(p.value<QDate>("string"), id);
    QCOMPARE(p.value<QDate>("int"), id);
    QCOMPARE(p.value<QDate>("stringint"), id);
    QCOMPARE(p.value<QDateTime>("string"), idt);
    QCOMPARE(p.value<QDateTime>("int"), idt);
    QCOMPARE(p.value<QDateTime>("stringint"), idt);
    QCOMPARE(p.value<int>("date"), 0);
    QCOMPARE(p.value<int>("datetime"), 0);
    QCOMPARE(p.value<int>("string"), 0);
    QCOMPARE(p.value<int>("stringdate"), 0);
    QCOMPARE(p.value<int>("stringdatetime"), 0);

    /* Cross types that should work.. */
    QCOMPARE(p.value<int>("stringint"), 123);
    QCOMPARE(p.value<QDate>("stringdate"), d);
    QCOMPARE(p.value<QDateTime>("stringdatetime"), dt);
    QCOMPARE(p.value<QDate>("datetime"), d);
    QCOMPARE(p.value<QDate>("stringdatetime"), d);
    QCOMPARE(p.value<QDateTime>("date"), ddt);
    QCOMPARE(p.value<QDateTime>("stringdate"), ddt);

    /* Now set everything again */
    QVariantMap emptyValues;
    QVariantMap values = p.variantValues();
    QStringList keys = values.keys();
    foreach (const QString& key, keys)
        QVERIFY(p.setValue(key, QVariant()));

    QCOMPARE(p.variantValues(), emptyValues);
    QVERIFY(p.variantValues().count() == 0);
    QVERIFY(!p.hasValue("string"));
    QVERIFY(!p.hasValue("date"));
    QVERIFY(!p.hasValue("datetime"));
    QVERIFY(!p.hasValue("int"));
    QVERIFY(!p.hasValue("stringdate"));
    QVERIFY(!p.hasValue("stringdatetime"));
    QVERIFY(!p.hasValue("stringint"));
    QVERIFY(!p.hasValue("non existent field"));

    QVERIFY(p.value("string") == QString());
    QVERIFY(p.variantValue("string") == QVariant());

    values.insert("string", "This is a string");
    values.insert("date", d);
    values.insert("datetime", dt);
    values.insert("int", (int)6);

    values.insert("stringdate", d.toString(Qt::ISODate));
    values.insert("stringdatetime", dt.toString(Qt::ISODate));
    values.insert("stringint", "123");
    values.insert("string", QString("This is a string"));

    /* Set values */
    keys = values.keys();
    foreach (const QString& key, keys)
        QVERIFY(p.setValue(key, values.value(key)));

    /* Now repeat the tests with our bulk set map */
    QVERIFY(p.hasValue("string"));
    QVERIFY(p.hasValue("date"));
    QVERIFY(p.hasValue("datetime"));
    QVERIFY(p.hasValue("int"));
    QVERIFY(p.hasValue("stringdate"));
    QVERIFY(p.hasValue("stringdatetime"));
    QVERIFY(p.hasValue("stringint"));
    QVERIFY(!p.hasValue("non existent field"));

    /* String accessors */
    QCOMPARE(p.value("string"), QString("This is a string"));
    QCOMPARE(p.value("date"), d.toString(Qt::ISODate));
    QCOMPARE(p.value("datetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value("int"), QString("6"));
    QCOMPARE(p.value("stringdate"), d.toString(Qt::ISODate));
    QCOMPARE(p.value("stringdatetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value("stringint"), QString("123"));

    /* Typed accessors, string first */
    QCOMPARE(p.value<QString>("string"), QString("This is a string"));
    QCOMPARE(p.value<QString>("date"), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("datetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("int"), QString("6"));
    QCOMPARE(p.value<QString>("stringdate"), d.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("stringdatetime"), dt.toString(Qt::ISODate));
    QCOMPARE(p.value<QString>("stringint"), QString("123"));

    /* Now individual original types */
    QCOMPARE(p.value<QDate>("date"), d);
    QCOMPARE(p.value<QDateTime>("datetime"), dt);
    QCOMPARE(p.value<int>("int"), 6);

    /* Now cross types that should fail */
    QCOMPARE(p.value<QDate>("string"), id);
    QCOMPARE(p.value<QDate>("int"), id);
    QCOMPARE(p.value<QDate>("stringint"), id);
    QCOMPARE(p.value<QDateTime>("string"), idt);
    QCOMPARE(p.value<QDateTime>("int"), idt);
    QCOMPARE(p.value<QDateTime>("stringint"), idt);
    QCOMPARE(p.value<int>("date"), 0);
    QCOMPARE(p.value<int>("datetime"), 0);
    QCOMPARE(p.value<int>("string"), 0);
    QCOMPARE(p.value<int>("stringdate"), 0);
    QCOMPARE(p.value<int>("stringdatetime"), 0);

    /* Cross types that should work.. */
    QCOMPARE(p.value<int>("stringint"), 123);
    QCOMPARE(p.value<QDate>("stringdate"), d);
    QCOMPARE(p.value<QDateTime>("stringdatetime"), dt);
    QCOMPARE(p.value<QDate>("datetime"), d);
    QCOMPARE(p.value<QDate>("stringdatetime"), d);
    QCOMPARE(p.value<QDateTime>("date"), ddt);
    QCOMPARE(p.value<QDateTime>("stringdate"), ddt);

    /* Reset again */
    values = p.variantValues();
    keys = values.keys();
    foreach (const QString& key, keys)
        QVERIFY(p.setValue(key, QVariant()));
    QCOMPARE(p.variantValues(), emptyValues);

    /* Check that we can add a null variant */
    //QVERIFY(p.setValue("nullvariant", QVariant()));
    //QVERIFY(p.hasValue("nullvariant"));
    //QCOMPARE(p.value("nullvariant"), QString());
    //QCOMPARE(p.variantValue("nullvariant"), QVariant());
    //QVERIFY(p.removeValue("nullvariant"));
    //QVERIFY(p.values().count() == 0);

    /* Check that adding a value, then setting it to null updates it */
    //QVERIFY(p.setValue("string", QString("string value")));
    //QCOMPARE(p.values().count(), 1);
    //QCOMPARE(p.value("string"), QString("string value"));
    //QVERIFY(p.setValue("string", QVariant()));
    //QCOMPARE(p.values().count(), 1);
    //QVERIFY(p.hasValue("string"));
    //QVERIFY(p.removeValue("string"));
    //QCOMPARE(p.values().count(), 0);

    /* See if adding a null QString triggers the same behaviour */
    //QVERIFY(p.setValue("string", QString("string value")));
    //QCOMPARE(p.values().count(), 1);
    //QCOMPARE(p.value("string"), QString("string value"));
    //QVERIFY(p.setValue("string", QString()));
    //QCOMPARE(p.values().count(), 1);
    //QVERIFY(p.hasValue("string"));
    //QVERIFY(p.removeValue("string"));
    //QCOMPARE(p.values().count(), 0);

    /* Check adding a null value removes the field */
    p.setValue("string", "stringvalue");
    QVERIFY(p.variantValues().contains("string"));
    QVERIFY(p.value("string") == QString("stringvalue"));
    p.setValue("string", QVariant());
    QVERIFY(!p.variantValues().contains("string"));

    /* Check adding a field whose value is an empty string */
    p.setValue("string", "");
    QVERIFY(p.variantValues().contains("string"));
    QVERIFY(p.value("string") == QString(""));

    /* Check accessing a missing value */
    QCOMPARE(p.value("nonexistent"), QString());
    QVERIFY(p.setValue("nonexistent", "changed my mind"));
    QCOMPARE(p.value("nonexistent"), QString("changed my mind"));

    /* Check removing a missing value */
    QVERIFY(!p.removeValue("does not exist"));
    QVERIFY(!p.removeValue(QLatin1String("does not exist")));
    QVERIFY(!p.removeValue(QContactAddress::FieldCountry));

    p.setValue("stringint", "555");
    p.setValue(QContactPhoneNumber::FieldNumber, "1234");

    /* Check removing a real value */
    QVERIFY(p.removeValue("string"));
    QVERIFY(p.removeValue(QLatin1String("stringint")));
    QVERIFY(p.removeValue(QContactPhoneNumber::FieldNumber));
}